A is the answer, the others have nothing to do with adjectives
The bandwagon fallacy is in the insistence that good cities are good because they have rail.
Explanation:
The bandwagon fallacy is where the causation of something is confused as an effect.<u> It is the argument that because all the great cities of the country have light rail, our city too should have the same light rail system to be as good as them.</u>
This argument falls apart because the rail will not curb the problems that the passage itself talks about and then willfully ignores. I<u>n fact, bringing the rail to town will actually aggravate some of the issues mentioned here</u>. Which is why the argument becomes more weak.
D. — perfect future.
The reasoning being that perfect future is a verb tense that is used when there’s an action that will be completed in the future.
Hope this helps. ^^